小学五年级上册简便计算专项练习
简便运算五上册年级100道及答案
简便运算五上册年级100道及答案五年级上册简算题100道带答案0.4×125×25×0.8=(0.4×25)×(125×0.8)=10×100=10001.25×(8+10)=1.25×8+1.25×10=10+12.5=22.59123-(123+8.8)=9123-123-8.8=9000-8.8=8991.21.24×8.3+8.3×1.76=8.3×(1.24+1.76)=8.3×3=24.99999×1001=9999×(1000+1)=9999×1000+9999×1=14.8×6.3-6.3×6.5+8.3×3.7 =(14.8-6.5)×6.3+8.3×3.7 =8.3×6.3+8.3×3.78.3×(6.3+3.7)=8.3×10=831.24+0.78+8.76=(1.24+8.76)+0.78=10+0.78=10.78933-157-43=933-(157+43)=933-200=7334821-998=4821-1000+2=3823I32×125×25=4×8×125×25=(4×25)×(8×125)=100×1000=1000009048÷268=(2600+2600+2600+1248)÷26=2600÷26+2600÷26+2600÷26+1248÷269 =100+100+100+48=3482881÷ 43=(1290+1591)÷ 434=1290÷43+1591÷43=30+373.2×42.3×3.75-12.5×0.423×16=3.2×42.3×3.75-1.25×42.3×1.6=42.3×(3.2×3.75-1.25×1.6)=42.3×(4×0.8×3.75-1.25×4×0.4)=42.3×(4×0.4×2×3.75-1.25×4×0.4) =42.3×(4x0.4x7.5-1.25x4x0.4)=42.3×[4×0.4×(7.5-1.25)]=42.3×[4×0.4×6.25]=42.3×(4×2.5)=42371.8+18÷1.5-0.5×0.3=1.8+12-0.15=13.8-0.15=13.656.5×8+3.5×8-47=52+28-47=80-47(80-9.8)×5分之2-1.32=70.2X2/5-1.32=28.08-1.32=26.768×7分之4÷[1÷(3.2-2.95)] =8×4/7÷[1÷0.25]=8×4/7÷4=8/72700×(506-499)÷900=2700×7÷900=18900÷900=2133.02-(148.4-90.85)÷2.5 =33.02-57.55÷2.5=33.02-23.02=10(1÷1-1)÷5.1=(1-1)÷5.1=0÷5.1=018.1+(3-0.299÷0.23)×1=18.1+1.7×1=18.1+1.7=19.8五年级上册简便算法题10÷3.14-6.86÷3.1437.68÷0.25÷43.75-(2.75-1.3)37.56-(18+7.56) 0.77÷144.5×9.80.7÷0.1250.7÷0.252.5×3.2×12.512.5×9.6×0.253.75-(2.8-1.25)37.65÷0.4÷0.253.125÷8÷0.12537.65-4.75-3.2525×6.4×12.53.6×0.25答案10÷3.14-6.86÷3.14 =(10-6.86)÷3.14 =3.14÷3.14 =137.68÷0.25÷4 =37.68÷(0.25×4) =37.68÷1 =37.683.75-(2.75-1.3) =3.75-2.75+1.3 =1+1.3 =2.337.56-(18+7.56) =37.56-7.56-18 =30-18 =12 0.77÷14 =0.77÷7÷2 =0.11÷2 =0.055 4.5×9.8=4.5×(10-0.2) =4.5×10-4.5×0.2 =45-0.9 =44.1 0.7÷0.125=(0.7×8)÷(0.125×8) =0.56÷1 =0.56 0.7÷0.25=(0.7×4)÷(0.25×4) =2.8÷1 =2.82.5×3.2×12.5 =(2.5×0.4)×(8×12.5) =1×100 =10012.5×9.6×0.25=(12.5×0.8)×3×(4×0.25) =10×3×1 =303.75-(2.8-1.25) =3.75+1.25-2.8=5-2.8 =2.237.65÷0.4÷0.25 3.125÷8÷0.125 37.65-4.75-3.25 25×6.4×12.5 =25×4×0.2×8×12.5 3.6×0.25 =(4-0.4)×0.25 3.4÷9+5.6÷9 =五年级上册100道乘法简便计算含答案用简便方法计算.1、368+2649+13512、 87+101+1133、24+127+476+5734、400-273-1275、327+(96-127)6、72×987、999+99+9 8、442-103-1429、67×5×2 10、25×(78×4)11、72×125 12、9000÷125÷813、400÷25 14、25×3615、103×27 16、76×10217、3600÷25÷4 18、99×3519、(25+12)×4 20、56×27+27×4421、56×99+56 22、125×25×8×423、25×32×125 24、125×64(1)(78+61)+39 (2)700-82-18(3)348+163+242+410+537(4)125×47-47×25(5)201×316(6)374-205+226-95(7)3000-999(8)997×7+21 (9)87×470+870×53(10)(55+55+55+55×5)×125(11)125×(8+40)×25 (12)99+49×99(13)265×97+4×265(14)454+999×999+545(15)9999×36+6666×3×32(16)124×38+65×124+76×110-76×7(17)62×4+44×5+5×18(18)3400-62×34-38×20-38×14(19)1992×-1991×五年级上册简便计算题100道简便计算题:1)6.9+4.8+3.1 0.456+6.22+3.78 15.89+(6.75-5.89)2)4.02+5.4+0.98 5.17-1.8-3.2 13.75-(3.75—6.48)3)3.68+7.56-2.68 7.85+2.34-0.85+4.66 35.6-1.8-15.6-7.24)3.82+2.9+0.18+9.1 9.6+4.8-3.6 7.14-0.53-2.475)5.27+2.86-0.66+1.63 13.35-4.68+2.65 73.8-1.64-13.8-5.366)47.8-7.45+8.8 0.398+0.36+3.64 15.75+3.59-0.59+14.257)66.86-8.66-1.34 0.25×16.2×4 (1.25-0.125)×8 8)3.6×102 3.72×3.5+6.28×3.5 36.8-3.9-6.19)28.6×101-28.6 4.8×7.8+78×0.52 32+4.9-0.9 10)4.8×100.1 56.5×9.9+56.5 7.09×10.8-0.8×7.09 11)25.48-(9.4-0.52) 4.2÷3.5 320÷1.25÷812)18.76×9.9+18.76 3.52÷2.5÷0.4 3.9-4.1+6.1-5.913)5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.214)17.8÷(1.78×4) 0.49÷1.4 1.25×2.5×3215)15.2÷0.25÷4 0.89×100.1 146.5-(23+46.5)9)28.6×101-28.6 4.8×7.8+78×0.52 32+4.9-0.9 10)4.8×100.1 56.5×9.9+56.5 7.09×10.8-0.8×7.09 11)25.48-(9.4-0.52) 4.2÷3.5 320÷1.25÷812)18.76×9.9+18.76 3.52÷2.5÷0.4 3.9-4.1+6.1-5.913)5.6÷3.5 9.6÷0.8÷0.4 4.2×99+4.214)17.8÷(1.78×4) 0.49÷1.4 1.25×2.5×3215)15.2÷0.25÷4 0.89×100.1 146.5-(23+46.5)18)(45.9-32.7)÷8÷0.125 3.14×0.68+31.4×0.0325.6÷1.25÷0.8÷2.5÷0.419)7.2×0.2+2.4×1.4 8.9×1.01 7.74×(2.8-1.3)+1.5×2.2620)3.9×2.7+3.9×7.3 18-1.8÷0.125÷0.8 12.7×9.9+1.2721)21×(9.3-3.7)-5.6 15.02-6.8-1.02 5.4×11-5.422)2.3×16+2.3×23+2.3 9.43-(6.28-1.57) 3.65×4.7-36.5×0.3723)46×57+23×86 13.7×0.25-3.7÷42.22×9.9+6.66×6.724)101×0.87-0.91×87 10.7×16.1-15.1×10.7 0.79×19918)(45.9-32.7)÷8÷0.125 3.14×0.68+31.4×0.0325.6÷1.25÷0.8÷2.5÷0.419)7.2×0.2+2.4×1.4 8.9×1.01 7.74×(2.8-1.3)+1.5×2.2620)3.9×2.7+3.9×7.3 18-1.8÷0.125÷0.8 12.7×9.9+1.2721)21×(9.3-3.7)-5.6 15.02-6.8-1.02 5.4×11-5.422)2.3×16+2.3×23+2.3 9.43-(6.28-1.57) 3.65×4.7-36.5×0.3723)46×57+23×86 13.7×0.25-3.7÷42.22×9.9+6.66×6.724)101×0.87-0.91×87 10.7×16.1-15.1×10.7 0.79×199 25)4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.2426)2.35+1.713+0.287+7.65 1.57+0.245+7.436.02+3.6+1.9827)0.134+2.66+0.866 1.27+3.9+0.73+16.1 7.5+4.9-6.528)3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-2.45-1.5529)3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.20.32×40330)3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×3631)12.7-(3.7+0.84) 36.54-1.76-4.540.25×0.73×432)7.6×0.8+0.2×7.6 0.85×199 0.25×8.5×433)1.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.3534)0.8×(4.3×1.25) 3.12+3.12×99五年级上册简算和方程一百道有答案1)50+160÷40 (2)120-144÷18+35 (3)347+45×2-4160÷52(4)(58+37)÷(64-9×5)(5)95÷(64-45)(6)178-145÷5×6+42(7)812-700÷(9+31×11)( 8)85+14×(14+208÷26)(9)(284+16)×(512-8208÷18)(10)120-36×4÷18+35(11)(58+37)÷(64-9×5)(12)(6.8-6.8×0.55)÷8.5(13)0.12× 4.8÷0.12×4.8 (14)(3.2×1.5+2.5)÷1.6(15)3.2×(1.5+2.5)÷1.6 (16)6-1.6÷4 (17)7.2÷0.8-1.2×5(18)6.5×(4.8-1.2×4)(19)0.68×1.9+0.32×1.9(20)10.15-10.75×0.4-5.7 (21)5.8×(3.87-0.13)+4.2×3.74(22)32.52-(6+9.728÷3.2)×2. (23)(136+64)×(65-345÷23)(24) 420+580-64×21÷28 (25)(58+370)÷(64-45)五年级上册数学简便计算,要简单点及答案遇到不会的题就上网找答案照抄,根本不想动脑筋,会让学生养成,在网上是问不到答案的哈不思考的习惯,改正吧,多思考做题不怕做错,就怕不思考简便计算15道五年级上册答案75×102=75*(100+2)=75*100+75*2=7500+150=76501.2×2.5=(1+0.2)*2.5=1*2.5+0.2*2.5=2.5+0.5=390.1-9.9=(90+0.1)-(10-0.1)=90+0.1-10+0.1=80+0.2=80.290.1×9.9=(90+0.1)*(10-0.1)=900-9+1-0.01=908-0.01=907.993.54×99+3.54=3.54*99+3.54*1=3.54*(99+1)=3.54*100=354272÷125=272*8/125*8=2176/1000=2.176五年级上册奥数题及答案(简单的)1、蜘蛛有8只脚,蜻蜓有6只脚和2对翅膀,苍蝇有6只脚和1对翅膀。
简便运算五年级上册100道
一、归类练习:3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5=3.29+(0.73+2.27) =3.29-(0.73+2.27) =(7.5-7.5)+(2.5+2.5)=3.29+3 =3.29-3 =0+5=6.29 =0.29 =5(加法结合律)(减法的性质)(同级运算交换)7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7)=7.325-3.325-3.29 =7.325-5.325-1.7 =7.325-5.325+1.7=4-3.29 =2-1.7 =2+1.7=0.71 =0.3 =3.7(减法交换)(减法的性质)(前面减号,脱括号变符号)3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8=(3.29-2.29)+(0.73+2.27) =3.29×(0.25×4) =0.125×8×1.1=1+3 =3.29×1 =1×1.1=4 =3.29 =1.1(同级运算交换)(乘法结合律)(先拆数,乘法结合律)0.25×0.28 0.125×3.2×2.5 35×10.2=0.25×4×0.07 =(0.125×8)×(0.4×2.5) =35×(10+0.2)=1×0.07 =1×1 =35×10+35×0.2=0.07 =1 =350+7(先拆数,乘法结合律)(拆数,乘法结合律) =357(拆数,乘法分配律)0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5=(0.25÷0.25)×(4×4) =3.5×(10-0.1) =3.5×(99+1)=1×16 =3.5×10-3.5×0.1 =3.5×100=16 =35-0.35 =350(同级运算交换)=34.65 (乘法分配律)(拆数,乘法分配律)3.5×101-3.5 3.5×9.9+3.5×0.1 ★3.5×2.7+35×0.73=3.5×(101-1) =3.5×(9.9+0.1) =3.5×2.7+3.5×7.3=3.5×100 =3.5×10 =3.5×(2.7+7.3)=350 =35 =3.5×10(乘法分配律)(乘法分配律) =35(先利用积不变的规律转化,然后再用乘法分配律)3.5×2.7-3.5×0.7 ★(32+5.6)÷0.8 ★3.5÷0.6-0.5÷0.6=3.5×(2.7-0.7) =32÷0.8+5.6÷0.8 =(3.5-0.5)÷0.6=3.5×2 =40+7 =3÷0.6=7 =47 =5(乘法分配律)(后2题类似分配律,但只适用于(a+b)÷c和(a-b)÷c,而a÷(b+c)和a÷(b -c)不能用。
小学数学五年级上册简便计算68道题含答案
小学数学五年级上册简便计算68道题(含详细答案)3.29+0.73+2.27 3.29-0.73-2.277.5+2.5-7.5+2.57.325-3.29-3.3257.325-(5.325+1.7)7.325-(5.325-1.7)3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.80.25×0.280.125×3.2×2.535×10.20.25×4÷0.25×43.5×9.9 3.5×99+3.53.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.73 3.5×2.7-3.5×0.7(32+5.6)÷0.8 3.5÷0.6-0.5÷0.64.9÷1.47÷0.25÷47÷0.1257.35÷(7.35×0.25)7.35÷(7.35÷0.25)3.07-0.38-1.62 1.29+3.7+2.71+6.38-2.45-1.553.25+1.79-0.59+1.7523.4-0.8-13.4-7.20.32×4033.2+0.36+4.8+1.64 1.23+3.4-0.23+6.60.25×3612.7-(3.7+0.84)36.54-1.76-4.540.25×0.73×4 7.6×0.8+0.2×7.60.85×1990.25×8.5×41.28×8.6+0.72×8.612.5×0.96×0.810.4-9.6×0.350.8×(4.3×1.25) 3.12+3.12×9928.6×101-28.6(4.23+6.17)×0.80.86×15.7-0.86×14.7 2.4×10214-7.32-2.68 2.64+8.67+7.36+11.33 2.31×1.2×0.5(2.5-0.25)×0.49.16×1.5-0.5×9.163.6-3.6×0.54.5÷1.8930÷0.6÷563.4÷2.5÷0.4 4.25÷2.5×9.9+0.173.9÷(1.3×5)(7.7+1.54)÷0.72.5×2.4 2.7÷450.35×1.25×2×0.832.4×0.9+0.1×32.415÷0.25 15÷(0.15×0.4)小学数学五年级上册简便计算练习(答案卷)一、归类练习:3.29+0.73+2.27 3.29-0.73-2.277.5+2.5-7.5+2.5=3.29+(0.73+2.27)=3.29-(0.73+2.27)=(7.5-7.5)+(2.5+2.5)=3.29+3=3.29-3=0+5=6.29 =0.29 =5(加法结合律)(减法的性质)(同级运算交换)7.325-3.29-3.3257.325-(5.325+1.7)7.325-(5.325-1.7)=7.325-3.325-3.29=7.325-5.325-1.7=7.325-5.325+1.7=4-3.29=2-1.7=2+1.7=0.71 =0.3 =3.7(减法交换)(减法的性质)(前面减号,脱括号变符号)3.29+0.73-2.29+2.27 3.29×0.25×40.125×8.8=(3.29-2.29)+(0.73+2.27)=3.29×(0.25×4)=0.125×8×1.1=1+3=3.29×1=1×1.1=4 =3.29 =1.1(同级运算交换)(乘法结合律)(先拆数,乘法结合律)0.25×0.280.125×3.2×2.535×10.2=0.25×4×0.07=(0.125×8)×(0.4×2.5)=35×(10+0.2)=1×0.07=1×1=35×10+35×0.2=0.07 =1 =350+7(先拆数,乘法结合律)(拆数,乘法结合律)=357(拆数,乘法分配律)0.25×4÷0.25×43.5×9.9 3.5×99+3.5=(0.25÷0.25)×(4×4)=3.5×(10-0.1)=3.5×(99+1)=1×16 =3.5×10-3.5×0.1 =3.5×100=16 =35-0.35 =350(同级运算交换)=34.65 (乘法分配律)(拆数,乘法分配律)3.5×101-3.5 3.5×9.9+3.5×0.1★3.5×2.7+35×0.73=3.5×(101-1)=3.5×(9.9+0.1)=3.5×2.7+3.5×7.3=3.5×100 =3.5×10 =3.5×(2.7+7.3)=350 =35 =3.5×10(乘法分配律)(乘法分配律)=35(先利用积不变的规律转化,然后再用乘法分配律)3.5×2.7-3.5×0.7★(32+5.6)÷0.8★3.5÷0.6-0.5÷0.6=3.5×(2.7-0.7)=32÷0.8+5.6÷0.8=(3.5-0.5)÷0.6=3.5×2 =40+7 =3÷0.6=7 =47 =5(乘法分配律)(后2题类似分配律,但只适用于(a+b)÷c和(a-b)÷c,而a÷(b+c)和a÷(b-c)不能用。
五年级上册简便计算题300题专项练习
五年级上册简便计算题300题专项练习五年级上册数学简便计算题300题专项练4.9+3.27+6.1+6.73 = 20.0011×4.9-4.9 = 48.10.25×6.82×4 = 6.8212.68-4.8-3.68 = 4.26.83×(3.8-2.3)+1.5×3.7 = 10.604.65-2.55-1.45 = 0.65201×6.5-6.5 = 1298.52.2×0.25+2.8×0.25 = 1.251.65×4.3+8.35×4 = 41.70 38.751.7÷2.5÷0.4 = 1.706.734.25-2.88+1.75-1.11 = 1.01 1005.1÷(4.25×0.8)= 1.25 19.7-(9.7+2.4) = 7.60.155+7.48+1.845 = 9.48 8.84.75+3.25×2.4+7.6 = 17.45 7.631.23×0.15+1.23×0.85 = 1.23 0.25×9.87×4 = 9.8776.39.01-1.09-0.91 = 7.0111.3-3.6-6.4 = 1.305.57-(1.29+1.57) = 2.711.23×9.4+0.77×9.4 = 10.00 0.6324.5+8.75) = -33.250.52.56+1.44+3.27 = 7.270.1251.25÷80 = 0.034.8-2.68-1.32 = 0.80 6.05×80 = 3864.0099+7.63 = 760.375.740.01+1.01×99 = 100.0027-76.3×17 = -1299.10 2.56101 = 259.497.49×2 = 14.9816 = 415.360.78×101 = 78.780.88×5) = 17.8499+5.74 = 102.25 20.2-8.4-1.8 = 328.08 3+7×2.56 = 22.718.3+0.83×63 = 60.0426There are several issues with this text。
小学数学五年级上册简便计算68道题(含详细规范标准答案)
小学数学五年级上册简便计算68道题(含详细规范标准答案)一、加减法简便计算1. 123 + 456 = 5792. 789 321 = 4683. 678 + 123 456 = 3454. 456 + 789 123 = 11225. 987 + 654 321 = 13206. 789 + 456 123 = 11227. 654 + 321 987 = 3128. 321 + 987 654 = 6549. 123 + 456 + 789 = 136810. 456 + 789 + 123 = 1368二、乘除法简便计算11. 7 × 8 = 5612. 9 ÷ 3 = 313. 12 × 13 = 15614. 15 ÷ 5 = 315. 18 × 19 = 34216. 21 ÷ 7 = 317. 24 × 25 = 60018. 27 ÷ 9 = 319. 30 × 31 = 93020. 33 ÷ 11 = 3三、混合运算简便计算21. 12 + 7 × 8 = 6822. 9 ÷ 3 + 6 = 723. 12 × 13 45 = 14124. 15 ÷ 5 + 8 = 725. 18 × 19 + 21 = 35726. 21 ÷ 7 4 = 127. 24 × 25 12 = 58828. 27 ÷ 9 + 3 = 629. 30 × 31 15 = 91530. 33 ÷ 11 2 = 1四、分数简便计算31. 1/2 + 1/3 = 5/632. 2/3 ÷ 1/4 = 8/333. 3/4 + 1/2 = 5/434. 4/5 ÷ 1/2 = 8/535. 5/6 + 1/3 = 7/636. 6/7 ÷ 1/4 = 24/737. 7/8 + 1/2 = 11/838. 8/9 ÷ 1/3 = 839. 9/10 + 1/5 = 13/1040. 10/11 ÷ 1/2 = 20/11五、小数简便计算41. 0.5 + 0.3 = 0.842. 0.6 ÷ 0.2 = 343. 0.7 × 0.8 = 0.5644. 0.4 ÷ 0.4 = 145. 0.9 + 0.1 = 146. 0.8 ÷ 0.2 = 447. 0.7 × 0.9 = 0.6348. 0.6 ÷ 0.3 = 249. 0.5 + 0.2 = 0.750. 0.4 ÷ 0.2 = 2六、百分数简便计算51. 20% + 30% = 50%52. 40% ÷ 20% = 253. 50% × 80% = 40%54. 25% + 75% = 100%55. 60% ÷ 30% = 256. 70% × 50% = 35%57. 80% + 20% = 100%58. 90% ÷ 10% = 959. 55% × 45% = 24.75%60. 65% + 35% = 100%七、方程简便计算61. 2x + 3 = 7,解得 x = 262. 3x 4 = 5,解得 x = 363. 4x + 5 = 9,解得 x = 164. 5x 6 = 4,解得 x = 265. 6x + 7 = 13,解得 x = 166. 7x 8 = 9,解得 x = 367. 8x + 9 = 17,解得 x = 168. 9x 10 = 11,解得 x = 3八、应用题简便计算69. 小华有10个苹果,小明有15个苹果,他们一共有多少个苹果?解:10 + 15 = 25个苹果。
小学数学五年级上册简便计算68道题(含详细答案)
小学数学五年级上册简便计算68道题(含详细答案)3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.57.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7)3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.80.25×0.28 0.125×3.2×2.5 35×10.2 0.25×4÷0.25×4 3.5×9.9 3.5×99+3.53.5×101-3.5 3.5×9.9+3.5×0.1 3.5×2.7+35×0.733.5×2.7-3.5×0.7 (32+5.6)÷0.8 3.5÷0.6-0.5÷0.64.9÷1.4 7÷0.25÷4 7÷0.1257.35÷(7.35×0.25) 7.35÷(7.35÷0.25)3.07-0.38-1.62 1.29+3.7+2.71+6.38-2.45-1.55 3.25+1.79-0.59+1.7523.4-0.8-13.4-7.2 0.32×4033.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×3612.7-(3.7+0.84)36.54-1.76-4.54 0.25×0.73×47.6×0.8+0.2×7.6 0.85×199 0.25×8.5×41.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.350.8×(4.3×1.25) 3.12+3.12×99 28.6×101-28.6(4.23+6.17)×0.8 0.86×15.7-0.86×14.7 2.4×10214-7.32-2.68 2.64+8.67+7.36+11.33 2.31×1.2×0.5(2.5-0.25)×0.4 9.16×1.5-0.5×9.163.6-3.6×0.54.5÷1.8 930÷0.6÷5 63.4÷2.5÷0.4 4.25÷2.5×9.9+0.173.9÷(1.3×5)(7.7+1.54)÷0.72.5×2.4 2.7÷450.35×1.25×2×0.8 32.4×0.9+0.1×32.415÷0.25 15÷(0.15×0.4)小学数学五年级上册简便计算练习(答案卷)一、归类练习:3.29+0.73+2.27 3.29-0.73-2.27 7.5+2.5-7.5+2.5=3.29+(0.73+2.27)=3.29-(0.73+2.27) =(7.5-7.5)+(2.5+2.5)=3.29+3 =3.29-3 =0+5=6.29 =0.29 =5(加法结合律)(减法的性质)(同级运算交换)7.325-3.29-3.325 7.325-(5.325+1.7) 7.325-(5.325-1.7)=7.325-3.325-3.29 =7.325-5.325-1.7 =7.325-5.325+1.7=4-3.29 =2-1.7 =2+1.7=0.71 =0.3 =3.7(减法交换)(减法的性质)(前面减号,脱括号变符号)3.29+0.73-2.29+2.27 3.29×0.25×4 0.125×8.8=(3.29-2.29)+(0.73+2.27) =3.29×(0.25×4)=0.125×8×1.1=1+3 =3.29×1 =1×1.1=4 =3.29 =1.1(同级运算交换)(乘法结合律)(先拆数,乘法结合律)0.25×0.28 0.125×3.2×2.5 35×10.2=0.25×4×0.07 =(0.125×8)×(0.4×2.5)=35×(10+0.2)=1×0.07 =1×1 =35×10+35×0.2=0.07 =1 =350+7(先拆数,乘法结合律)(拆数,乘法结合律) =357(拆数,乘法分配律)0.25×4÷0.25×4 3.5×9.9 3.5×99+3.5=(0.25÷0.25)×(4×4)=3.5×(10-0.1)=3.5×(99+1)=1×16 =3.5×10-3.5×0.1 =3.5×100=16 =35-0.35 =350(同级运算交换) =34.65 (乘法分配律)(拆数,乘法分配律)3.5×101-3.5 3.5×9.9+3.5×0.1 ★ 3.5×2.7+35×0.73=3.5×(101-1) =3.5×(9.9+0.1)=3.5×2.7+3.5×7.3=3.5×100 =3.5×10 =3.5×(2.7+7.3)=350 =35 =3.5×10(乘法分配律)(乘法分配律) =35(先利用积不变的规律转化,然后再用乘法分配律)3.5×2.7-3.5×0.7 ★ (32+5.6)÷0.8 ★ 3.5÷0.6-0.5÷0.6=3.5×(2.7-0.7) =32÷0.8+5.6÷0.8 =(3.5-0.5)÷0.6=3.5×2 =40+7 =3÷0.6=7 =47 =5(乘法分配律)(后2题类似分配律,但只适用于(a+b)÷c和(a-b)÷c,而a÷(b+c)和a÷(b-c)不能用。
五年级上册数学简便计算专项练习题
五年级上册数学简便计算专项练习题第一节:加法和减法运算1. 小明买了一本书,花了25元,他手里还剩下38元。
那本书的价格是多少元?2. 玛丽有5个苹果,她吃掉了2个,还剩下多少个苹果?3. 小宇的爸爸给了他32元钱,他又从零花钱里拿了10元。
小宇去商店买了一件价值57元的衣服,他还需要再付多少钱?第二节:乘法和除法运算1. 有3箱苹果,每箱有20个苹果。
总共有多少个苹果?2. 有15个学生,每个学生分得一本书。
需要多少本书?3. 一个周末,小明看了6个小时的电视。
每个小时他的弟弟会玩30分钟的电子游戏。
弟弟一共玩了多少分钟的电子游戏?第三节:综合计算题1. 小玲买了5个鸡蛋,小明买了3个鸡蛋。
他们一共买了多少个鸡蛋?2. 小华有40个糖果,她想平均分给她的5个朋友,每个朋友能分到几个糖果?3. 有12个橙子,小明想把它们平均分成3组,每组有几个橙子?第四节:应用题1. 一只狗每天吃100克狗粮,它的狗粮一共可以吃多少天?2. 小明每周有3天做作业,每天做1小时,他一个学期一共会做多少小时的作业?3. 王爸爸和李爸爸一起修路,王爸爸修了10天,李爸爸修了15天。
他们一共修了多少天的路?第五节:解决问题1. 一年级有120个学生,五年级有160个学生,那么学校一共有多少个学生?2. 若果一盒纸巾有8包,每包纸巾有30张,那么一盒纸巾有多少张?3. 电视台一天播放30分钟的广告,一周有7天,那么一周电视台播放多少分钟的广告?注意:以上题目是为了展开论述,深化对小学数学基础知识的学习和理解。
请根据学生的实际情况进行适当调整,以便提高学生的学习兴趣和提升能力。